15 gallon tank. How much of this product do I need?

This is not medicine where dosage is important. Drop 1 bottle into any gas tank, and fill it up so the new gas will mix the product with the whole tank.

What is considered "high mileage"? I am at 30k miles.

depends on the car company, fiat 75K is it, new engine please, mercedes, lexus types 150K, 200K diesel.

Can this be used at 17,000 miles. I have a honda civic 2020

Can be used after mileage where you think carbon from combustion has accumulated. 17k appears to be enough driving where carbon may have accumulated. Others say a good gas with detergent is good enough, and no additive is needed.

What is the EPA level?

Light to moderate with a front moving noeth fron Altuna

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Gumout 800001363 High Mileage Fuel Injector Cleaner - 6 oz.

Gumout 800001363 High Mileage Fuel Injector Cleaner - 6 oz.

Product ID: 6145567

Details

Brand
Gumout
Item Form
Liquid
Material Feature
Unscented
Scent
Unscented

⛽Cleans fuel injectors & intake ports

🌿Reduces emissions & prevents build-up

⚙️Restores engine performance >75K miles

€ 23.90

Duties & taxes included

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Description

⛽ Unlock peak engine power and eco-friendly miles—don’t let your ride fall behind!

ECO BOOST CLEANER - Lowers emissions while preventing future carbon build-up for a cleaner, greener drive.
UNIVERSAL TURBO SAFE - Compatible with turbocharged and supercharged vehicles without risking your warranty.
FUEL ECONOMY ENHANCER - Restores optimal fuel injector function to maximize mileage and save on gas.
EFFORTLESS MAINTENANCE - Just add to nearly empty tank every 3,000 miles—simple, effective, and hassle-free.
ENGINE REVIVAL FORMULA - Specially designed for engines with 75,000+ miles to erase carbon deposits and boost efficiency.

Gumout High Mileage Fuel Injector Cleaner is a 6 oz. universal formula engineered to remove stubborn carbon deposits from engines with over 75,000 miles. Safe for turbo and supercharged vehicles, it cleans fuel injectors, intake valves, and ports to restore performance, improve fuel economy, and reduce emissions—all without voiding your manufacturer’s warranty.

Specifications

ASIN	B0041E8VZ2
Best Sellers Rank	#1,585 in Automotive ( See Top 100 in Automotive ) #873 in Automotive Replacement Fuel Injectors
Brand Name	Gumout
Cleaning Agent Formulation	Solvent
Contains Liquid Contents?	No
Customer Reviews	4.7 4.7 out of 5 stars (2,979)
Global Trade Identification Number	00071948900967
Included Components	Gumout - 510013 - 6oz
Item Form	Liquid
Item Type Name	Gumout - 510013 - 6oz
Item Volume	177.6 Milliliters
Item Weight	0.2 Grams
Manufacturer	Gumout
Material Features	Unscented
Model Number	800001363
Number of Items	1
Part Number	510013
Scent	Unscented
Size	6 Fl Oz (Pack of 1)
Smart Home Compatibility	Not Smart Home Compatible
Specific Uses For Product	Removes carbon deposits from engines with over 75,000 miles, cleans fuel injectors, intake valves and ports, restores performance and fuel economy, prevents future carbon build-up, reduces emissions
Surface Recommendation	Fuel injectors, intake valves, ports
UPC	071948900967
Unit Count	6.0 Fluid Ounces
Warranty Description	Manufacturer Warranty

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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€ 23.90

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Croatia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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